Modular sole structure

ABSTRACT

The present invention provides a modular sole structure, including a sole and at least one convex arranged on the sole. An anti-wear block, which is removable and matches with the convex, is mounted at the bottom of the convex near the ground, The modular sole structure provided by the invention can form a modular sole structure by mounting a removable anti-wear block to the sole. When the anti-wear block is worn out, a new anti-wear block can be replaced. In this way, the user can fine adjust his walking posture, and thus reduce the wearing-out of the sole structure. Because of this, the life-span of the shoes is prolonged, and the undesirable walking posture caused by the wearing-out of the sole can be avoided; by replacing the removable anti-wear block, the user will not have to frequently replace new shoes and economic loss is avoided.

CROSS REFERENCE TO RELATED APPLICATION

The present application is based on and claims priority of Chinese patent application No. 201610653153.5, filed on Aug. 08, 2016. The entire disclosure of the above-identified application, including the specification, drawings and claims are incorporated herein by reference in its entirety.

FIELD OF THE INVENTION

The present disclosure relates to a footgear field, in particular, relates to a modular sole structure.

BACKGROUND OF THE INVENTION

With the development of people's living standards, more and more people begin to think much of their health and exercises. A shoe is mainly constituted by a vamp and a sole. Whether the shoe is comfortable or not mainly depends on the sole, because the sole directly contacts with the ground.

To increase the anti-slip effect of the sole and prevent slips, non-slipping convexes are arranged on the bottom of the sole, which has various shapes. Generally, the non-slipping convexes at the forward, backward or side sections of the shoe will be rapidly worn out, which will not only affect the wearing comfort, but affect the anti-slipping effects. The reasons to cause the wearing-out include foot type and walking habits of the user. Once a bad walking habit is developed, it is hard to correct, which will brings injury to his feet in the long run, for example, he is inclined to roll over and sprain his ankle, or always has fatigue feelings.

Because of this, a shoe with an air-cushion was first invented. Such air-cushion shoe had an airbag arranged in an airbag room. The outer surface of the airbag room contacted with the ground directly. If the airbag room wore out, the airbag therein would be broken due to further wearing-out by the ground. When this happened, the shoes would have to be abandoned, which brought economic loss to the user.

SUMMARY OF THE INVENTION

The present invention provides a modular sole structure, which forms a modular sole structure by mounting a removable anti-wear block in the sole. When the anti-wear block is worn out, a new anti-wear block can be replaced. In this way, the undesirable walking posture caused by the wearing-out of the sole can be avoided; further, by replacing the removable anti-wear block, the user will not have to frequently replace new shoes and economic loss is avoided.

The embodiment of the present invention provides a modular sole structure, which includes a sole and at least one convex mounted on the sole, a removable anti-wear block is mounted at the bottom of the convex near the ground, which matches with the convex.

In one embodiment, the anti-wear block includes an anti-wear pad which contacts with the ground and a fixed fin which is mounted in the periphery of the anti-wear pad and connects with the anti-wear pad, the anti-wear block is removably fixed on the convex by the fixed fin.

In one embodiment, a snap-fit is mounted at either the outer surface of the convex or the inner surface of the fixed fin, and a slot is mounted at the other, the snap-fit is removably clip-fixed in the slot.

In one embodiment, an external thread is arranged at the outer surface of the convex, an internal thread is arranged at the inner surface of the fixed fin, the internal thread and the external thread are in threaded connection.

In one embodiment, the amount of the convex is at least two, including a first convex and a second convex, the first convex is removably equipped with a first anti-wear block, the second convex is removably equipped with a second anti-wear block, the thickness of the anti-wear pad in the first anti-wear block is bigger than that of the anti-wear pad in the second anti-wear block, or the wear resistance of the anti-wear pad in the first anti-wear block is bigger than that of the anti-wear pad in the second anti-wear block.

In one embodiment, anti-slip strips or anti-slip cleats are mounted at the bottom of the anti-wear pad.

In one embodiment, the amount of the convex is multiple, the multiple convexes are separated by a concave, a removable anti-wear block is mounted at the bottom of each convex, which matches with the convex.

In one embodiment, the multiple convexes are merely arranged at the heel part of the sole.

In one embodiment, the multiple convexes are arranged at both the heel part and the forefoot part of the sole.

In one embodiment, an airbag room is mounted in the convex, and an airbag is mounted in the airbag room, the airbag room and the airbag are stretchable and compressible.

In one embodiment, every two of the convexes are arranged in a row along the left-to-right direction, and the airbags in the two convexes in a row interconnect by a connecting tube.

In one embodiment, the modular sole structure further includes a shoe insert mounted on the sole, and a connecting tube groove is arranged at the bottom surface of the shoe insert, which contains the connecting tube.

In one embodiment, a connecting tube groove is arranged at the upper surface of the sole, which contains the connecting tube.

In one embodiment, the airbag connects with an air vent, which is used to inflate or deflate the airbag.

In one embodiment, the modular sole structure further includes an air pressure sensor used to detect the air pressure of the airbag.

In one embodiment, the modular sole structure further includes a RF transceiver/receiver used for transferring the air pressure in the airbag detected by the air pressure sensor to the mobile terminal of the user.

In one embodiment, the modular sole structure further includes a controller, which connects with the RF transceiver/receiver, the controller provides suggested air pressure based on the walking state and road condition, and transfers the suggested air pressure to the mobile terminal of the user through the RF transceiver/receiver.

In one embodiment, the modular sole structure further includes a built-in air charging device, when the airbag needs inflating, it is inflated by the air charging device.

In one embodiment, the air charging device is a manual air charging device, which includes an inflation button, the airbag is inflated by operating the inflation button.

In one embodiment, the air charging device is an automatic air charging device, the modular sole structure further includes a RF transceiver/receiver and a controller, the controller connects with the air charging device and the RF transceiver/receiver, when the RF transceiver/receiver receives an inflation control instruction sent from the mobile terminal, the controller controls the air charging device to automatically inflate the airbag.

The modular sole structure provided by the embodiments of the present invention has at least the following advantages: it can form a modular sole structure by mounting a removable anti-wear block in the sole. When the anti-wear block is worn out, a new anti-wear block can be replaced. In this way, the user can fine adjust his walking posture, and thus reduce the wearing-out of the sole structure. Because of this, the life-span of the shoes is prolonged, and the undesirable walking posture caused by the wearing-out of the sole can be avoided; further, by replacing the removable anti-wear block, the user will not have to frequently replace new shoes and economic loss is avoided.

Further, the airbag room and airbag mounted in the sole structure form a shock absorption system, which endows the sole structure a better shock absorption effect. Further, when the two airbags in a row are connected by a connecting tube, it can balance the sole structure, even walking on an uneven road, the user will not sprain his ankles.

Further, by arranging an air pressure sensor, a RF transceiver/receiver and an air charging device in the sole structure, the user can get the air pressure condition in the airbag at any time, and decide to inflate or deflate the airbag according to the actual needs, and thus adjusting the hardness of the airbag.

BRIEF DESCRIPTION OF THE DRAWINGS

The above objects and advantages of the present invention will become more readily apparent to those ordinarily skilled in the art after reviewing the following detailed description and accompanying drawings, in which:

FIG. 1 is a front view of the sole structure in the first embodiment of the present invention.

FIG. 2 is an assembled three dimensional view of the sole structure in FIG. 1.

FIGS. 3a-3e are cross-sectional view of embodiments along III-III line in FIG. 1.

FIG. 4 is a front view of the sole structure in embodiment 2 of the present invention.

FIG. 5 is an exploded schematic view of the sole structure in FIG. 4.

FIG. 6 is an assembled three dimensional view of the sole structure in FIG. 4.

FIG. 7 is a cross-sectional view of the sole along VII-VII line in FIG. 6.

FIG. 8 is an exploded schematic view of the sole structure in embodiment 3 of the present invention.

FIG. 9 is a bottom view of a shoe insert of the sole structure in FIG. 8.

FIG. 10 is an assembled three dimensional view of the sole structure in FIG. 8.

FIG. 11 is a cross-sectional view of the sole along XI-XI line in FIG. 10.

FIGS. 12a-12b are schematic view of FIG. 11 in different working states.

FIG. 13 is a cross-sectional view of the sole structure in embodiment 4.

FIG. 14 is a top view of a sole of the sole structure in FIG. 13.

FIG. 15 is a front view of the sole structure in embodiment 5 of the present invention.

FIG. 16 is a front view of the sole structure in embodiment 6 of the present invention.

FIG. 17 is a cross-sectional view of the sole structure in embodiment 7 of the present invention.

FIG. 18 is a cross-sectional view of the sole structure in embodiment 8 of the present invention.

FIG. 19 is a cross-sectional view of the sole structure in embodiment 9 of the present invention.

FIG. 20 is a schematic view of the automatic inflation principle of the sole structure in FIG. 19.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The present invention will now be described more specifically with reference to the following embodiments. It is to be noted that the following descriptions of preferred embodiments of this invention are presented herein for purpose of illustration and description only. It is not intended to be exhaustive or to be limited to the precise form disclosed.

Embodiment 1

FIG. 1 is a front view of the sole structure in embodiment 1 of the present invention, and FIG. 2 is an assembled three dimensional view of the sole structure in FIG. 1. Please referring to FIGS. 1 and 2, the sole structure of the embodiment includes a shoe insert 11 and a sole 12, at least one convex 120 (as shown in FIGS. 3a-3b ) is arranged on the sole 12. Removable anti-wear block 13 is mounted at the bottom of the convex 120 near the ground, which matches with the convex 120. The shoe insert 11 is arranged on the sole 12. In one embodiment, the shoe insert 11 can also be omitted according to actual conditions.

FIGS. 3a-3e are cross-sectional view of different embodiments in FIG. 1 along III-III line. Please referring to FIGS. 3a -3 e, the anti-wear block 13 includes an anti-wear pad 131 contacting with the ground and a fixed fin 132 which is arranged in the periphery of the anti-wear pad 131 and connects with the anti-wear pad 131. The anti-wear block 13 is removably fixed onto the convex 120 via the fixed fin 132. Specifically, there is no limitation to the shape of the convex 120, which can be circle, oval, square or irregular. The shape of the anti-wear block 13 matches with that of the convex 120, and the anti-wear block 13 is removably mounted on the bottom of the convex 120 near the ground. There is no limitation to the methods by which the anti-wear block 13 fixed to the convex 120, for example, the methods can be plug-in, clip connection, threaded connection and screw lock etc., any method that facilitates the anti-wear block 13 to be removable to the convex 120 can work here.

For example, please referring to FIG. 3a , a snap-fit 14 is mounted in either the outer surface of the convex 120 or the inner surface of the fixed fin 132, a slot 15 is mounted in the other, and the snap-fit 14 is removably clip-fixed in the slot 15. In one embodiment, the snap-fit 14 is mounted on the outer surface of the convex 120, and the slot 15 is mounted in the inner surface of the fixed fin 132. In another embodiment, the snap-fit 14 is mounted in the inner surface of the fixed fin 132, and the slot 15 is mounted in the outer surface of the convex 120.

Please referring to FIG. 3b , external thread 16 is arranged in the outer surface of the convex 120, and internal thread 17 is arranged in the inner surface of the fixed fin 132, the internal thread 17 and the external thread 16 are in threaded connection, in this way, the anti-wear block 13 is removably mounted in the convex 120.

Please referring to FIGS. 3c and 3d , there are at least two convex 120 in the sole structure, the convexes 120 includes a first convex 120 a and a second convex 120 b, an anti-wear block 13 a is removably mounted onto the first convex 120 a, and an anti-wear block 13 b is removably mounted onto the second convex 120 b, wherein a thickness of the anti-wear pad 131 of the first anti-wear block 13 a is larger than that of the anti-wear pad 131 of the second anti-wear block 13 b (as shown in FIG. 3c ); or the wear resistance of the anti-wear pad 131 of the first anti-wear block 13 a is better than that of the anti-wear pad 131 of the second anti-wear block 13 b (as shown in FIG. 3d ). In one embodiment, in order to realize that the wear resistance of the first anti-wear block 13 a is better than that of the second anti-wear block 13 b, a material of the first anti-wear block 13 a can be different from that of the second anti-wear block 13 b. Considering that different users have different walking habit, for some users, one side of the sole may be worn out quicker than the other side. In this embodiment, to mount the anti-wear block that is thicker or that has better wear resistance at the side which generally wore out more quickly than the other side, can ensure the degree of wear-out on both sides to be consistent, and can effectively improve the non-consistent wearing problems of both sides.

Please referring to FIG. 3e , the anti-wear block 13 further includes an anti-slip strip 133 mounted on the bottom of the anti-wear pad 131. The anti-slip strip 133 can be replaced by anti-slip cleats, in order to improve the wear resistance of the anti-wear block 13, or transform a normal shoe to an athletic shoe, such as golf shoes.

A material of the anti-wear block 13 can be different according to actual situations, such as metal, synthetic plastics or rubber, in order to match with different sports environment.

The convex 120 can be one or multiple. In the embodiment, there are multiple convexes 120, the multiple convexes 120 are separated with each other by concaves 19, and a removable anti-wear block 13 is mounted on the bottom of each of the convex 120, which matches with the convex 120. Each of the convexes 120 is separated by the concave 19, in this way, each of the convexes 120 can independently contact with the ground.

Embodiment 2

FIG. 4 is a front view of the sole structure in embodiment 2 of the present invention, FIG. 5 is an exploded schematic view of the sole structure in FIG. 4, FIG. 6 is an assembled schematic view of the sole structure in FIG. 4, and FIG. 7 is a cross-sectional view of FIG. 6 along VII-VII line. Please referring to FIGS. 4-7, in this embodiment, an airbag room 121 is mounted in the convex 120, and an airbag 21 is arranged in the airbag room 121, the airbag room 121 and the airbag 21 are stretchable and compressible. The airbag room 121 and the airbag 21 can be mounted in only some of the convex 120 or be mounted in all of the convex 120. The arrangement of the airbag room 121 and the airbag 21 in the convex 120 can effectively improve the shock absorption effect of the sole structure. Further, compared with the embodiment wherein merely airbag room 121 is arranged, the airbag 21 in the airbag room 121 greatly reduces the leakage risk of the airbag 21. Even the shoe-insert 11 and the sole 12 are not combined closely and leakage of the airbag room 121 occurs, the air tightness of the airbag 21 will not be affected. Since the airbag room 121 is stretchable and compressible, the anti-wear block 13 cannot be extremely high; generally, it is slightly higher than the bottom of the airbag room 121. That is to say, compared with the first embodiment, the height of the anti-wear block 13 is less than that in embodiment 1.

Embodiment 3

FIG. 8 is an exploded schematic view of the sole structure in embodiment 3 of the invention, FIG. 9 is a bottom view of the shoe insert of the sole structure in FIG. 8, and FIG. 11 is a cross-sectional view of FIG. 10 along XI-XI line. Please referring to FIGS. 8-11, in this embodiment, every two of the convexes 120 are arranged in a row along the left-to-right direction of the sole 12 (X direction in FIG. 8), and the airbags 21 in every two convexes 120 in each row are connected by a connecting tube 22. Specifically, multiple rows of convexes 120 can be arranged along the fore-and-aft direction (Y direction in FIG. 8) of the sole 12, both convexes 120 in each row are arranged along the left-and-right direction of the sole 12, and the airbags 12 in convexes 120 of each row are connected by a connecting tube 22.

During daily exercises, the sole will turn over with a certain angle at the circumstances of walking on rough road, stepping on a stone on the ground or stepping on a foot of others. This will sprain the ankles of the user or even fracture his legs. By arranging interconnected airbags 21 in the convexes 120 of the sole 12, turning over will be avoided.

FIGS. 12a-12b are schematic view of FIG. 11 in different working states, wherein FIG. 12a is a schematic view of the airbags in both convexes during normal compression, and FIG. 12b is a schematic view of the airbags in both convexes when stepping on rough road. As shown in FIG. 12a , when walking on a flat road, both right and left airbags bear basically the same load, the air pressure of both airbags 21 are identical, and deformation is also identical. When one side of the sole steps on an object such as stones, the airbag room 121 at that side is compressed, and the airbag 21 in the airbag room 121 is further compressed. Since both airbags 21 are interconnected, to ensure the air pressure in both airbags 21 is identical, the gas in the compressed airbag 21 flows to the other side through the connecting tube 22, which makes the airbag 21 in the other side inflate, and the corresponding airbag room 121 is stretched and applies force to the ground, which forms a torque contrary to the turning over trends. Because of this, the turning over of the sole 12 is prevented, and the sole 12 redresses the balance, which can effectively prevent the occurrence of spraining ankles.

In this embodiment, please referring to FIGS. 9 and 11, a connecting tube groove 112 is mounted in the bottom surface of the shoe insert 11, which is used to contain the connecting tube 22, and the connecting tube 22 connects the two airbags 21. Since the bottom surface of the shoe insert 11 matches with the upper surface of the sole 12, a connecting tube groove 112 is arranged in the bottom surface of the shoe insert 11, which can contain the connecting tube 22. Because of this, there is no need to groove in the sole 12, which can improve the strength of the sole 12.

Embodiment 4

FIG. 13 is a cross-sectional view of the sole structure in embodiment 4 of the invention, and FIG. 14 is a top view of the sole of the sole structure in FIG. 13. Please referring to FIGS. 13 and 14, in this embodiment, a connecting tube groove 122 is arranged on the upper surface of the sole 12, which is used to contain the connecting tube 22. The connecting tube 22 connects with the two airbag 21. The connecting tube groove 122 mounted on the upper surface of the sole 12 can facilitate the placing of the airbag 21, and further ensure the placing of the connecting tube 22 even their sizes do not match.

Embodiment 5

FIG. 15 is a front view of the sole structure in embodiment 5 of the invention. Please referring to FIG. 15, in this embodiment, the multiple convexes 120 are merely arranged at the heel part 12 a of the sole 12, there is no convex 120 mounted at the forefoot part 12 b of the sole 12. These convexes 120 at the heel part 12 a are arranged in rows along the left-to-right direction of the sole 12 (two rows of the convexes 120 are shown in FIG. 15). Airbag room 121 and airbag 21 are arranged in each of the convex 120, and airbags 21 in each row of the two convexes 120 can further be connected by a connecting tube 22. The design of this embodiment is suitable for air-cushion shoes with heels.

Embodiment 6

FIG. 16 is a front view of the sole structure in embodiment 6 of the invention. Please referring to FIG. 16, in this embodiment, these convexes 120 are distributed at both the heel part 12 a and the forefoot part 12 b of the sole 12. These convexes 120 at the heel part 12 a and the forefoot part 12 b are arranged in rows along left-to-right direction (six rows of the convexes 120 are shown in FIG. 16). An airbag room 121 and an airbag 21 are mounted in each of the convex 120, and every two airbags 21 in each row of the convexes 120 interconnect with each other via a connecting tube 22. The sole structure of the embodiment is suitable for flat air-cushion shoes, which can improve the state of the stress on the feet by distributing the stress onto the whole sole.

Embodiment 7

FIG. 17 is a cross-sectional view of the sole structure in embodiment 7 of the invention. Please referring to FIG. 17, in this embodiment, the airbag 21 in the convex 120 connects with an air vent 23, which is used to inflate the airbag 21. The user can inflate the airbag 21, for example, when walking on hard road, at that circumstance the airbag should be soft; meanwhile, when walking on soft road, the airbag 21 should be hard enough, at that circumstance, the user can adjust the air vent 23 to decrease the gas pressure in the airbag 21. The inflation of the airbag 21 can be conducted through the air vent 23 by a pump or an electric air pump (not shown). When necessary, the deflation of the airbag 21 can be carried out by a long thin object (such as iron wire or toothpick) inserting into the air vent 23, therefore the pressure in the airbag 21 is reduced. The pressure in the airbag 21 changes at the range of 5 psi-25 psi in accordance with specific conditions.

Embodiment 8

FIG. 18 is a cross-sectional view of the sole structure in embodiment 8 of the invention. Please referring to FIG. 18, in this embodiment, the sole structure further includes an air pressure sensor 41 which is used to detect the air pressure in the airbag 21. The air pressure sensor 41 can be placed in the airbag 21, and can also be placed outside the airbag 21 but connect with the airbag 21, in order to detect the air pressure in the airbag 21.

The sole structure further includes a RF transceiver/receiver module 42 used for sending the air pressure value in the airbag 21 detected by the air pressure sensor 41 to the mobile terminal 50 (as shown in FIG. 20) of the user. In this way, the user can easily get the air pressure situation in the airbag 21, and then decide to inflate the airbag 21 through the air vent 23 or deflate the airbag 21 through the air vent 23 when necessary.

The sole structure further includes a built-in air charging device 43, when the air pressure in the airbag 21 is insufficient, the airbag 21 can be inflated through the built-in air charging device 43. In this way, the air pressure and hardness of the airbag 21 can be adjusted at any time, which is superior to the solution of inflating by a pump or an electric air pump, at that situation, the user will have to carry a pump or an electric air pump in hand at any time.

In this embodiment, the air charging device 43 is a manual air charging device, which includes an air-charging button 431. The airbag 21 is manually inflated by operating the air-charging button 431. Specifically, the manual air charging device further includes a first air pipe 432, a second air pipe 433, a first valve 434 mounted in the first air pipe 432, and a second valve 435 mounted in the second air pipe 433. The second air pipe 433 connects with the air-charging button 431 and the airbag 21, and the first air pipe 432 connects with the second air pipe 433 and the external environment. The air-charging button 431 is elastic, when the airbag 21 is to be inflated, press the air-charging button 431 to make it compress. At that moment, the first valve 434 in the first air pipe 432 is closed, and the second valve 435 in the second air pipe 433 is open. When pressing, the air-charging button 431 pushes the gas into the airbag 21 through the second air pipe 433. When releasing the air-charging button 431, the first valve 434 in the first air pipe 432 is open, and the second valve 435 in the second air pipe 433 is closed, external gas enters the air-charging button 431 via the first air pipe 432, which makes the air-charging button 431 inflate and restore to the initial state. In this way, repeatedly pressing the air-charging button 431 can help inflate the airbag 21 manually. In this embodiment, the air-charging button 431 is exposed at one side of the sole structure, and the inflation can be realized by fingers. In another embodiment, the air-charging button 431 is mounted under the sole part. At that circumstance, the inflation is realized by pressing the air-charging button 431 by walking feet.

Embodiment 9

FIG. 19 is a cross-sectional view of the sole structure in embodiment 9 of the present disclosure, and FIG. 20 is a schematic view of the automatic air-charging principle of the sole structure in FIG. 19. Please referring to FIGS. 19 and 20, in this embodiment, the sole structure further includes a controller 44, the RF transceiver/receiver 42 is further used to receive the inflation instruction sent from the mobile terminal 50. The air-charging device 43 is an automatic air-charging device, which includes a gas generator 436, such gas generator 436 can be a small or micro-sized gas generator, and can also generate gas by chemical reaction. The gas generator 436 can be placed simply in the airbag 21, and it can also be mounted outside the airbag 21 and introduce the generated gas into the airbag 21 via pipes.

The controller 44 connects with the air charging device 43 and the RF transceiver/receiver 42. When the airbag 21 needs to be inflated, the user can send inflation instruction by the mobile terminal 50, when the RF transceiver/receiver 42 receives the inflation instruction from the mobile terminal 50, it transfers the inflation instruction to the controller 44, the controller 44 controls the gas generator 436 to generate gas, therefore the airbag 21 is automatically inflated until the air pressure of the airbag 21 achieves target value. In this way, the air pressure of the airbag 21 can be adjusted automatically according to the requirements of the user, and the hardness of the air bag 21 is further adjusted.

In this embodiment, an electronic-controlled sealing valve 231 is further mounted in the air vent 23, and the sealing valve 231 connects with the controller 44. When air pressure and harness of the airbag 21 are extremely high, the air pressure of the airbag 21 needs to be reduced, the user can issue a deflation instruction via the mobile terminal 50. When the RF transceiver/receiver 42 receives the deflation instruction sent by the mobile terminal 50, it transfers the deflation instruction to the controller 44. And then, the controller 44 controls the sealing valve 231 to open, and extra gas is deflated from the airbag 21 via the air vent 23 until the air pressure in the airbag 21 achieves target value.

In the embodiment, the controller 44 can provide suggested air pressure of the airbag 21 according to the operating condition or road surface condition, and send the suggested air pressure to the mobile terminal 50 of the user via the RF transceiver/receiver 42. The user can easily decide whether it is needed to inflate or deflate the airbag 21 based on the suggested air pressure and the current air pressure in the airbag 21.

The sole structure provided by the aforementioned embodiments can be applied in various shoes such as sports shoes, basketball shoes, running shoes, casual shoes or feather shoes.

The sole structure provided by the aforementioned embodiments of the invention have at least the following advantages:

First, by setting a removable anti-wear block on the sole, a modular sole structure is formed, when the anti-wear block is worn out, a new anti-wear block can be replaced. In this way, the user can fine adjust his walking posture, and thus reduce the worn out of the sole structure. Because of this, the life-span of the shoes is prolonged, and the undesirable walking posture caused by the wear out of the sole can be avoided; by replacing the removable anti-wear block, the user will not have to frequently replace new shoes and economic loss is avoided.

Second, the airbag room and airbag mounted in the sole structure form a shock absorption system, which endows the sole structure a better shock absorption effect. Further, when the two airbags in a row are connected by a connecting tube, it can balance the sole structure, even walking on an uneven road, the user will not sprain his ankles.

Third, by arranging an air pressure sensor, RF transceiver/receiver and an air charging device in the sole structure, the user can get the air pressure condition in the airbag at any time, and decide to inflate or deflate the airbag according to the actual needs, and thus adjusting the hardness of the airbag.

While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures. 

1. A modular sole structure, comprising a sole and at least one convex arranged on the sole, wherein an anti-wear block, which is removable and matches with the convex, is mounted at the bottom of the convex near the ground.
 2. The modular sole structure of claim 1, wherein the anti-wear block comprises an anti-wear pad which contacts with the ground and a fixing fin which is mounted at the periphery of the anti-wear pad and connected with the anti-wear pad, the anti-wear block is removably fixed on the convex by the fixing fin.
 3. The modular sole structure of claim 2, wherein a snap-fit is formed on either the outer surface of the convex or the inner surface of the fixing fin, a slot is formed in the other, the snap-fit is removably clip-fixed in the slot.
 4. The modular sole structure of claim 2, wherein an external thread is arranged at the outer surface of the convex, and an internal thread is arranged at the inner surface of the fixing fin, the internal thread and the external thread are in threaded connection.
 5. The modular sole structure of claim 2, wherein the amount of the convex is at least two, the convexes comprise a first convex and a second convex, the first convex is removably equipped with a first anti-wear block, the second convex is removably equipped with a second anti-wear block, the thickness of the anti-wear pad in the first anti-wear block is larger than the thickness of the anti-wear pad in the second anti-wear block, or the wear resistance of the anti-wear pad in the first anti-wear block is higher than that of the anti-wear pad in the second anti-wear block.
 6. The modular sole structure of claim 2, wherein an anti-slip strip or anti-slip cleat is arranged at the bottom of the anti-wear pad.
 7. The modular sole structure of claim 1, wherein the amount of the convex is multiple, the multiple convexes are separated from each other by concaves, and an anti-wear block, which is removable and matches with the convex, is mounted at the bottom of each convex.
 8. The modular sole structure of claim 7, wherein the multiple convexes are merely arranged at the heel part of the sole.
 9. The modular sole structure of claim 7, wherein the multiple convex are arranged at both the heel part and the forefoot part of the sole.
 10. The modular sole structure of claim 1, wherein an airbag room is formed in the convex, and an airbag is mounted in the airbag room, the airbag room and the airbag are stretchable and compressible.
 11. The modular sole structure of claim 10, wherein every two of the convexes are arranged in a row along the left-to-right direction, and the airbags in each row of the two convexes are connected by a connecting tube.
 12. The modular sole structure of claim 11, wherein the modular sole structure further comprises a shoe insert on the sole, and a connecting tube groove is formed in the bottom surface of the shoe insert, the connecting tube groove is used to contain the connecting tube.
 13. The modular sole structure of claim 11, wherein a connecting tube groove is formed in the upper surface of the sole, the connecting tube groove is used to contain the connecting tube.
 14. The modular sole structure of claim 10, wherein the airbag connects with an air vent, the air vent is used to inflate or deflate the airbag.
 15. The modular sole structure of claim 10, wherein the modular sole structure further comprises an air pressure sensor used to detect the air pressure in the airbag.
 16. The modular sole structure of claim 15, wherein the modular sole structure further comprises an RF transceiver/receiver, which is used to transfer the air pressure condition of the airbag detected by the air pressure sensor to a mobile terminal of the user.
 17. The modular sole structure of claim 16, wherein the modular sole structure further comprises a controller connecting with the RF transceiver/receiver, the controller is used to provide suggested air pressure based on the walking state of the user and the road condition, and to transfer the suggested air pressure to the mobile terminal of the user by the RF transceiver/receiver.
 18. The modular sole structure of claim 10, wherein the modular sole structure further comprises a built-in air charging device, when the airbag needs inflating, it is inflated by the air charging device.
 19. The modular sole structure of claim 18, wherein the air charging device is a manual air charging device, which comprises an inflation button, the airbag is manually inflated by operating the inflation button.
 20. The modular sole structure of claim 18, wherein the air charging device is an automatic air charging device, the modular sole structure further comprises a RF transceiver/receiver and a controller, the controller connects with the air charging device and the RF transceiver/receiver, when the RF transceiver/receiver receives an inflation instruction sent from a mobile terminal, the controller controls the air charging device to automatically inflate the airbag. 